在5年内,循环中的microRNA与胰腺癌风险相关
Cong Wang1, Hui Cai1, Qiuyin Cai1
1Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
International journal of cancer
|April 11, 2024
概括
循环中的microRNAs (miRNAs) 可以在诊断前五年预测胰腺癌风险. 这项研究确定了特定的miRNA,如hsa-miR-199a-3p和hsa-miR-767-5p,为早期癌症检测和监测提供了潜力.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物标志物发现发现
背景情况:
- 早期发现可显著提高胰腺癌存活率.
- 确定胰腺癌风险的可靠生物标志物对于及时干预至关重要.
- 循环微RNAs (miRNAs) 正在成为非侵入性癌症检测的有希望的候选人.
研究的目的:
- 为了确定与胰腺癌风险相关的循环microRNAs (miRNAs).
- 在独立的队列中验证这些miRNA生物标记物的可靠性.
- 探索miRNAs在早期胰腺癌检测和风险评估方面的潜力.
主要方法:
- 一个两阶段的病例控制研究设计,利用血样本收集到五年前的诊断.
- 使用NanoString nCounter分析系统测量798个miRNA.
- 对条件逻辑回归模型的元分析,以确定miRNA水平与胰腺癌风险之间的关联.
主要成果:
- 在发现阶段确定了12种与风险相关的miRNA (p < .05).
- 在复制队列中验证了三个miRNA (hsa-miR-199a-3p/hsa-miR-199b-3p,hsa-miR-767-5p,hsa-miR-191-5p).
- 另外5种miRNA在老年人 (≥65岁) 中显示出显著的关联,并得到了验证.
- 识别的miRNA目标在与胰腺癌发生和进展相关的途径中得到了丰富.
结论:
- 循环的miRNA可以作为潜在的生物标志物来识别患胰腺癌高风险的个体.
- 这些发现表明miRNAs可能对早期癌症查和监测策略有用.
- 经过验证的miRNAs为开发胰腺癌的非侵入性诊断工具提供了一个有希望的途径.
相关概念视频
MicroRNAs
3.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.0K
mTOR Signaling and Cancer Progression
3.8K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.8K
lncRNA - Long Non-coding RNAs
8.6K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.6K


